The Electric Car
in [Design]
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From: John Larkin on 9 Oct 2007 22:52 On Tue, 09 Oct 2007 15:59:41 -0700, Rock Brentwood <markwh04(a)yahoo.com> wrote: >On Oct 5, 3:47 pm, "zzbun...(a)netscape.net" <zzbun...(a)netscape.net> >wrote: >> The main problem with batteries, is just simply people >> who don't know how to drive, or know anything about aerodynamics, >> Since electric starters where only even invented, orignally, >> for people who just can't function without automatic transmissions. > >Toyota is coming out with a Lithium-based car in the near future. > >I think the first car to ever hit 100 MPH was electric. > >There was a news segment done recently on an electric cycle, the >machine gets up to 150 MPH and does 0-60 in 1 second. That's pretty >violent acceleration, on par with fighter jets and rockets. Roughly 3G. Must be hard on tires. John
From: bill on 10 Oct 2007 00:48 On Oct 9, 10:52 pm, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > On Tue, 09 Oct 2007 15:59:41 -0700, Rock Brentwood > > <markw...(a)yahoo.com> wrote: > >On Oct 5, 3:47 pm, "zzbun...(a)netscape.net" <zzbun...(a)netscape.net> > >wrote: > >> The main problem with batteries, is just simply people > >> who don't know how to drive, or know anything about aerodynamics, > >> Since electric starters where only even invented, orignally, > >> for people who just can't function without automatic transmissions. > > >Toyota is coming out with a Lithium-based car in the near future. > > >I think the first car to ever hit 100 MPH was electric. > > >There was a news segment done recently on an electric cycle, the > >machine gets up to 150 MPH and does 0-60 in 1 second. That's pretty > >violent acceleration, on par with fighter jets and rockets. > > Roughly 3G. Must be hard on tires. > > John don 't think it can be done. that's a friction coefficient of *3* that's just a little better than velcro!?!
From: Eric Gisin on 9 Oct 2007 23:20 "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in message news:jhfog3lpkgkoemjhqc3ptu7lsfnhqoj2su(a)4ax.com... > On Tue, 09 Oct 2007 15:59:41 -0700, Rock Brentwood > <markwh04(a)yahoo.com> wrote: > >>Toyota is coming out with a Lithium-based car in the near future. >> >>I think the first car to ever hit 100 MPH was electric. >> Doubtful with lead-acid cells. >>There was a news segment done recently on an electric cycle, the >>machine gets up to 150 MPH and does 0-60 in 1 second. That's pretty >>violent acceleration, on par with fighter jets and rockets. > > Roughly 3G. Must be hard on tires. > Above 1G any RWD vehicle will lift the front. 2G would be suicide.
From: JosephKK on 10 Oct 2007 07:49 bill ford_prefect42(a)hotmail.com posted to sci.electronics.design: > On Oct 9, 10:52 pm, John Larkin > <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: >> On Tue, 09 Oct 2007 15:59:41 -0700, Rock Brentwood >> >> <markw...(a)yahoo.com> wrote: >> >On Oct 5, 3:47 pm, "zzbun...(a)netscape.net" <zzbun...(a)netscape.net> >> >wrote: >> >> The main problem with batteries, is just simply people >> >> who don't know how to drive, or know anything about >> >> aerodynamics, Since electric starters where only even >> >> invented, orignally, for people who just can't function >> >> without automatic transmissions. >> >> >Toyota is coming out with a Lithium-based car in the near future. >> >> >I think the first car to ever hit 100 MPH was electric. >> >> >There was a news segment done recently on an electric cycle, the >> >machine gets up to 150 MPH and does 0-60 in 1 second. That's >> >pretty violent acceleration, on par with fighter jets and rockets. >> >> Roughly 3G. Must be hard on tires. >> >> John > > don 't think it can be done. that's a friction coefficient of *3* > that's just a little better than velcro!?! If your tires were actually transmitting all that torque, thing would flip just after the front wheel left the ground.
From: Glen Walpert on 10 Oct 2007 08:26
On Tue, 09 Oct 2007 15:14:00 -0700, Richard Henry <pomerado(a)hotmail.com> wrote: >On Oct 9, 3:10 pm, Glen Walpert <gwalp...(a)notaxs.com> wrote: >> On Tue, 09 Oct 2007 13:15:45 -0700, Fred Abse >> >> <excretatau...(a)cerebrumconfus.it> wrote: >> >On Tue, 09 Oct 2007 14:29:44 +0000, Glen Walpert wrote: >> >> >> I have done some work on these too, including the >> >> defunct Clinch River Fast Breeder Reactor primary sodium pump seal. >> >> Hot liquid sodium qualifies as a fairly nasty fluid - but only if it >> >> leaks :-). >> >> >Hot UF6 is pretty nasty, too. I read somewhere a long time ago that they >> >started building the Oak Ridge diffusion plant without any idea how to >> >make pump seals that would stand the stuff. Some guy called, IIRC, Judson >> >Swearingen came up with the goods just in time. D'you happen to know if >> >how it was done ever got declassified? >> >> I don't know anything about that, and don't know if it was ever >> declassified, but in general they are not too good about declassifying >> that sort of information IME. Obviously the information is out there, >> considering the number of enrichment plants in operation today, but >> that has not stopped efforts to limit access to detailed info on how >> it is done. >> >> The classified info that irks me most is the Navy rules for safe >> reactor construction and operation. Admiral Rickover did a pretty >> good job creating these rules, judging by the Navy's safety record, >> and it is a pity we can't compare "Ricky's rules" to the safety rules >> in effect for commercial power plants. If TMI had followed Navy >> standard safety practice the accident definitely would not have >> happened, at least two of the amazing series of problems leading to >> the accident would have been prevented. But those standard practices >> are classified, and it is my opinion that much more harm than good is >> done by it. > >The Navy has an advantage in enforcing its safety rules. The >operators have an extreme incentive to maintaining safe operation and >safe equipment since they sleep in the plant. You might think so, but boredom and complacency can set in even on a submarine. The important differences are in plant construction, operator training, and specific operational procedures. I recall a reactor operator performance review something like "Joe knows exactly what to do in any situation. Unfortunately he rarely notices when a situation occurs." Verifying that your operators know what to do and have a high probability of recognizing the situation is not easy. |